| 单词 | spin-allowed |
| 释义 | > as lemmasspin-allowed spin-allowed adj. ΘΚΠ the world > matter > physics > quantum theory > electron spin > [adjective] > consistent with selection rules spin-allowed1972 1972 C. H. DePuy & O. L. Chapman Molecular Reactions & Photochem. iii. 34 Electronic transitions between states of the same multiplicity, i.e., singlet-singlet and triplet-triplet transitions, are spin-allowed. 1973 Sci. Amer. June 51/3 Today the definition is more technical, fluorescence corresponding to ‘spin-allowed’ electric dipole transitions and phosphorescence to ‘spin-disallowed’ transitions. < as lemmas |
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